Chaeles h



waited gittata o'HAnL'EsH.' raisers, on CHICAGO, IILLINOIS.

Letters Patent No. 103,596, dated May 31, 1870.

EXHAUST-NOZZLE.

The schedule referred to in than Letters Patent and mamngpart of the sama.

To all whom it may concern:

Beit known that I, CHARLES H. Fnrsrn, of Chicago, in the county of 000k aud State of Illinois, have invented a new and useful Improvement in Exhaust-Nozzle for Steam-Engines; and I do hereby decla-re the following to be a full,clear, and exact deseriptiou thereof', which will enable others-skilled in theart to which my invention appertains' to make and' use the same,.refereuce being had te the aecomlpanying drawings forming part of this specification.

Figure 1 is a transverse vertical section of my improved exhaust-nozzle, and

Figure 2 is a detached view of one of -the valves i' thereof.-

.Similar letters of reference indicate corresponding parts inthe several figures of thev drawings.

My invention has for its object'to .provide an automatic exhaust-nozzle to be attached to the exhaustpipes of steam-engines to prevent ashes, cinders, hot air, 86e., from entering theeXhaust-pipes, to come in contact with the valve and its seat, or the pistou and interior of the cylinder, and thereby injuring their `working surfaces.

The invention consists in the automatic valves of peculiar construction, adapted to open by the action of exhaust steam directly into the smoke-box or stack B is the valve, consisting of a hollow cone divided longitudinally into two equal parts C' C, each hinged -to opposite sides of the cap A, and nding'their seats upon the upper beveled end of said cap.

When the exhaust steam from the engine passes through the cap it lifts the valves G G outward in opposite directious,aud escapes between them, and, when the pressure of the steam is relieved,.the valves' 4close u'pou the cap by their own gravity to prevent the ashes,l einders, 85e., from entering the exhaustvpipe, t-o come in contact' with and cut ont and injure the working surfaces of the cylinder', piston, and

steam-valve of .the engine. l

The projections D which contain the hinges of the valves C O, are also provided with vertical extensions E E for the purpose of preventing the valves from swinging outward beyond a vertical line, so that they shall close upon the eapA, when the exhaust has ceased, by their own gravity. v 'If desired, a spring, F, may be arranged in each vof the extensions E, to assist the descent of the valves.

The proximate edges G of the valves are rebated, as shown, so that they shall'iit snugly together when closed upon their 'seats, and their lower edges are beveled to correspond with their seats upon the cap.

The beveled end of the cap prevents ciuders, ashes,

86e., from lodging thereon when the valves are raised,

Awhile the latter, when closed, present an unbroken conical exterior, from which the ashes, 86e., are depleted. By constructing the valves with an interior conical surface, au increased area is produced for the action of the steam, and the valves are therefore rendered more sensitive and less liable to adhere to their seats. I am aware that exhaust-nozzles have been. made with valves, which, by the action of springs, are closed 

